Glass for Nex 7?
Posted 22 October 2012 - 10:39 PM
“We saw our product and video in your website! We are so happy about that!! We are now developing the Contax G to Sony NEX adapter with AF function and it is almost finish. We will update the information to you very soon.Some people email us about Nikon G to NEX (AF support) adapter. We will start this project around November(after Contax G to NEX AF adapter) and we think we will finish it before April 2013.”
Posted 14 November 2012 - 04:54 AM
From that viewpoint, NEX right now only has one option, 16mm + adapter (UWA or FW), that for example nauticam houses. There are many comments on quality, but a plus is to be able to play with both WA & FE with the same solution.
How usable would you think the new Sony 10-18 f4 would be UW? It would require a completely different port solution and diameter dome I suppose, right?
Posted 15 November 2012 - 06:23 AM
I will (most likely) buy a NEX-7, but the available lenses are of no interest to me for underwater use.
I'm getting a bit desperate, as I'm leaving on a (very) long journey of photo and diving soonish.
Looking at the Nauticam port chart (http://www.nauticam....t/pdf_143_1.pdf), there are some Nikonos to Nex adapter.
I've no experience in Nikonos, but would that be a viable option?
How does Nikonos lenses work, the aperture and focus knobs are directly on the lens IIUC, which is waterproof without a port? (forgive my ignorance, I was not in the water during the Nikonos era .
Would they be alright for an APC-S sensor?
Any input on the combination NEX 7 with Nikonos glass most appreciated!
I use some Nikonos lenses on a micro-four-thirds camera (Olympus EP1) in a one-of-a-kind experimental housing. The EP1 has a higher crop-factor than the NEX cameras, 2.0 instead of 1.6, but it's lower resolution so the pixel size is probably similar.
Here are my opinions:
The 80mm is REALLY hard to use. I usually try it with the Nikonos close-up adapter for supermacro, but the depth of field of a 160mm equivalent lens along with manual focus is problematic, at least for me. I believe that the lens is sharp, I just haven't gotten any supermacro images in focus yet. Here are the closest:
P5040991.jpg by davelewinn, on Flickr
P5040978-2 by davelewinn, on Flickr
The 28mm lens is OK, maybe a little better with the closeup adapter, but nothing great. This is my best shot with the 28mm:
P5030857.jpg by davelewinn, on Flickr
The 15mm Nikonos lens is the only one I regularly use. It is more than sharp enough for a 12 megapixel sensor on a 2.0 crop factor camera, which is pretty astounding for a lens that age. Here is an example of a shot I took to try to later identify the beaded anemone, which shows what the 15mm is capable of even on a crop sensor camera:
Turks and Caicos by davelewinn, on Flickr
Personally, I find myself using a modern fisheye lens with autofocus and a dome port more than the Nikonos lenses. As frustrating as autofocus sometimes can be, manual focus is even more frustrating.